I’d rather change my phone number than my email address these days (of course, I’d much rather never have to do either).
For me, it isn’t just about getting your new email address out to people who mail you, it is about the fact that your email address is basically the de facto unique identifier token most websites use as your identity these days.
Having said all of that, this is not really that big of a deal and is only really news because the iPad is the new hot thing. This is a very minor data breach.